瀏覽器沒(méi)顯示，也不報(bào)錯(cuò)
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>無(wú)標(biāo)題文檔</title>
<script type="text/javascript">
var mystr="86-010-85468578";
document.write(mystr.split("-")+ "<br>");
document.write(mystr.split("") + "<br>");
document.write(mystr.split("", 3);
</script>
</head>
<body>
</body>
</html>
2021-08-27
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>無(wú)標(biāo)題文檔</title>
<script type="text/javascript">
var mystr="86-010-85468578";
document.write(mystr.split("-")+ "<br>");
document.write(mystr.split("") + "<br>");
document.write(mystr.split("", 3)); //<---這里少了個(gè)后括號(hào)
</script>
</head>
<body>
</body>
</html>
2021-08-13
document.write(mystr.split("", 3);你這句的括號(hào)呢？？